Full name: Oscar Grégoire, Jr.
Gender: Male
Born: March 27, 1877 in Moscow, Moskva, Russia
Died: 1947
Affiliations: Brussels Swimming and Water Polo Club
Country:
Belgium
Sport: Water Polo, Swimming
Medals: 2 Silver, 1 Bronze (3 Total)
| Games | Age | City | Sport | Event | Team | NOC | Rank | Medal | |
|---|---|---|---|---|---|---|---|---|---|
| 1900 Summer | 23 | Paris | Water Polo | Men's Water Polo | Brussels Swimming and Water Polo Club | BEL | 2 | Silver | |
| 1908 Summer | 31 | London | Water Polo | Men's Water Polo | Belgium | BEL | 2 | Silver | |
| 1908 Summer | 31 | London | Swimming | Men's 100 metres Backstroke | Belgium | BEL | AC h6 r1/3 | DNF | |
| 1912 Summer | 35 | Stockholm | Water Polo | Men's Water Polo | Belgium | BEL | 3 | Bronze | |
| 1912 Summer | 35 | Stockholm | Swimming | Men's 100 metres Backstroke | Belgium | BEL | AC h3 r1/3 | DQ |
| Games | Age | City | Sport | Team | NOC | Phase | Unit | Rank | Date | Result | G |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1908 Summer | 31 | London | Water Polo | Belgium | BEL | Final Round | Match 1/2 | 2 | 1908-07-22 | GBR 9, BEL 2 | 1 |
| 1908 Summer | 31 | London | Water Polo | Belgium | BEL | Semi-Finals | Match #1 | 1 | 1908-07-20 | BEL 8, SWE 4 | 3 |
| 1908 Summer | 31 | London | Water Polo | Belgium | BEL | Round One | Match #1 | 1 | 1908-07-15 | BEL 8, NED 1 | 0 |
| 1912 Summer | 35 | Stockholm | Water Polo | Belgium | BEL | Round One | Match #1 | 2 | 1912-07-07 | GBR 7, BEL 5 | 2 |
| Games | Age | City | Sport | Country | Phase | Unit | Rank | T | |
|---|---|---|---|---|---|---|---|---|---|
| 1908 Summer | 31 | London | Swimming | Belgium | Round One | Heat Six | AC | DNF | |
| 1912 Summer | 35 | Stockholm | Swimming | Belgium | Round One | Heat Three | AC | DQ | [1:29.8] |